Yoshimura RS-3 Race Series Full System R146RRD Yoshimuras championship-winning RS-3 exhaust system featuring Duplex crossover chambers for maximum street or track performance Tapered quick-release headers and three-section tuned system utilizes Duplex chambers to permit shorter header pipe length for more top-end power with no sacrifice of mid-range torque Race-grade 20-gauge stainless steel header construction resists corrosion Electro-polished header and tailpipe for maximum shine and easy maintenance RS-3 oval muffler design gives a slim profile for maximum ground clearance